AccessibilityService Listview项目单击或模拟输入事件？

Question

我试图遍历ListView，为每个项目实现click事件，但不起作用。 请问为什么点击没有效果？

public void addFriendSearch(AccessibilityNodeInfo info) {

        try {


                L.i(TAG, "-addFriendSearch-parent widget----------------------------" + info.getClassName());
                L.i(TAG, "--Text：" + info.getText());
                L.i(TAG, "--windowId:" + info.getWindowId());
                boolean contentInvalid = info.isVisibleToUser();
                L.i(TAG, "--contentInvalid:" + contentInvalid);

                for (int i = 0; i < info.getChildCount(); i++) {
                    AccessibilityNodeInfo child = info.getChild(i);
                    boolean equals = child.getClassName().equals("android.widget.ListView");
                    if(equals){
                        for (int j = 0; j < child.getChildCount(); j++) {
                            L.i("listview child："+j);
                            AccessibilityNodeInfo child1 = child.getChild(j);
                            if (child1 != null) {
                                if (child1.isClickable()) {
                                    L.i("listview child click");
                                    info.performAction(AccessibilityNodeInfo.ACTION_CLICK); // click
                                }
                            }
                        }

                    }else{
                        if(child!=null){
                            addFriendSearch(info.getChild(i));
                        }
                    }

                }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

或如何参加活动？